总而言之，应用导热硅胶类热界面导热材料的基本原则是：在机械和电气安全的前提下,尽可能使用*薄的热界面材料！All in all, Huiwell advice, Cardinal Rule: Use the thinnest TIM possible within Mechanical and Electrical Safety .
影响热界面材料（导热材料）热传递的因素有哪些？
1. 热界面(表面)粗糙程度与平面度 .
Surface Texture (Rough) & Flatness (2 points) affects
tolerance.
1-1：制造工艺,受生产铸造、铝挤、冲压等影响.
Manufacturing Process - Casting vs Extrusion /
Stamping.
1-2：物理特性 ：如很长的平面 ,平面度公差会被放大.
Larger surface area magnifies the out of tolerance.
2. 热界面材料的厚度---用来（填补）减少公差带来的问题.
TIM Thickness mitigates the tolerance
problem.
3. 应用环境: 比如一些振动场合需要厚度更厚的材料.
Application Environment: Vibration requires
thicker material.
4. 电气安全: 需要厚度更厚的耐高压材料.
Electrical safety typically requires thicker material.
4-1：厚的材料会增加热阻.
Thicker material increases thermal
resistance.
5. 压缩模量：柔软的材料具有较好的顺应性及表面浸润效果,能降低接触热阻.
Compression Modulus – Softer
material improves compliance and surface wetting, reducing Contact Resistance.
6. 较高的(接触)安装压力能降低接触热阻.
Higher Contact
Pressure reduces the Contact Resistance.
总而言之，应用导热硅胶类热界面导热材料的基本原则是：在机械和电气安全的前提下,尽可能使用*薄的热界面材料！
All in all, Huiwell advice, Cardinal Rule: Use
the thinnest TIM possible within Mechanical and Electrical Safety .
